c9b13594eb
These were often used to distinguish CAR_GLOBAL variables that weren't directly usable. Since we're getting rid of this special case, also get rid of the marker. This change was created using coccinelle and the following script: @match@ type T; identifier old =~ "^(g_.*|.*_g)$"; @@ old @script:python global_marker@ old << match.old; new; @@ new = old if old[0:2] == "g_": new = new[2:] if new[-2:] == "_g": new = new[:-2] coccinelle.new = new @@ identifier match.old, global_marker.new; @@ - old + new @@ type T; identifier match.old, global_marker.new; @@ - T old; + T new; @@ type T; identifier match.old, global_marker.new; @@ - T old + T new = ...; There were some manual fixups: Some code still uses the global/local variable naming scheme, so keep g_* there, and some variable names weren't completely rewritten. Change-Id: I4936ff9780a0d3ed9b8b539772bc48887f8d5eed Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37358 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <cpu/x86/tsc.h>
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#include <pc80/i8254.h>
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#include <smp/spinlock.h>
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#include <delay.h>
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#include <thread.h>
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void init_timer(void)
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{
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(void)tsc_freq_mhz();
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}
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void udelay(unsigned int us)
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{
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unsigned long long start;
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unsigned long long current;
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unsigned long long clocks;
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if (!thread_yield_microseconds(us))
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return;
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start = rdtscll();
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clocks = us;
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clocks *= tsc_freq_mhz();
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current = rdtscll();
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while ((current - start) < clocks) {
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cpu_relax();
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current = rdtscll();
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}
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}
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#if CONFIG(TSC_MONOTONIC_TIMER)
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#include <timer.h>
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static struct monotonic_counter {
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int initialized;
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struct mono_time time;
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uint64_t last_value;
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} mono_counter;
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void timer_monotonic_get(struct mono_time *mt)
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{
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uint64_t current_tick;
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uint64_t ticks_elapsed;
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unsigned long ticks_per_usec;
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if (!mono_counter.initialized) {
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init_timer();
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mono_counter.last_value = rdtscll();
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mono_counter.initialized = 1;
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}
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current_tick = rdtscll();
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ticks_elapsed = current_tick - mono_counter.last_value;
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ticks_per_usec = tsc_freq_mhz();
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/* Update current time and tick values only if a full tick occurred. */
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if (ticks_elapsed >= ticks_per_usec) {
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uint64_t usecs_elapsed;
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usecs_elapsed = ticks_elapsed / ticks_per_usec;
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mono_time_add_usecs(&mono_counter.time, (long)usecs_elapsed);
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mono_counter.last_value = current_tick;
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}
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/* Save result. */
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*mt = mono_counter.time;
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}
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#endif
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